Home / 214,578.40-321,867.60-164,909.20

Finding the Fourth Proportional to 214,578.40, 321,867.60 and 164,909.20

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Solution

The fourth proportional to 214,578.40, 321,867.60 and 164,909.20 is: 247,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,578.40 : 321,867.60 = 164,909.20 : x
  2. Step 2: Convert to fraction form
    214,578.40/321,867.60 = 164,909.20/x
  3. Step 3: Cross multiply
    214,578.40x = 321,867.60 × 164,909.20
  4. Step 4: Simplify right side
    214,578.40x = 53,078,928,421.92
  5. Step 5: Solve for x
    x = 53,078,928,421.92/214,578.40
  6. Step 6: Final answer
    x = 247,363.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.